Topic: Will a CB750 K8 trans fit in an early K motor?

[mycb750k6]

I know some gears (2,4) are different and some have less cogs on the gears in the later models but what if I swapped everything including the shafts, bearings and clutch? Could I swap the entire trans into the early K case?

[the technological J]

why not just switch bottom ends?keep the jugs, pistons and heads from the other bike

[754]

 What year K case. out put bearing got wider around 73. if you want to use the loder style sprocket carrier, you should change the sprocket shaft to the shorter (early)one..

[mycb750k6]

Hmmmm. well the K8 has VIN 3000..... and the K1 1111...  And I considered the K8 bottom end but (1) it's black and (2) I don't know that it's any good either till I open it up. This project has gone south in a hurry.

[CycleRanger]

K8 output shaft is longer.

[mycb750k6]

Well that's it then. Thanks. How about the shift drum and forks. Are they exchangeable?